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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Copyright (C) 2017 dubenju@126.com.<a name="line.2"></a>
<span class="sourceLineNo">003</span> *<a name="line.3"></a>
<span class="sourceLineNo">004</span> * Licensed under the Apache License, Version 2.0 (the "License");<a name="line.4"></a>
<span class="sourceLineNo">005</span> * you may not use this file except in compliance with the License.<a name="line.5"></a>
<span class="sourceLineNo">006</span> * You may obtain a copy of the License at<a name="line.6"></a>
<span class="sourceLineNo">007</span> *<a name="line.7"></a>
<span class="sourceLineNo">008</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * Unless required by applicable law or agreed to in writing, software<a name="line.10"></a>
<span class="sourceLineNo">011</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.11"></a>
<span class="sourceLineNo">012</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.12"></a>
<span class="sourceLineNo">013</span> * See the License for the specific language governing permissions and<a name="line.13"></a>
<span class="sourceLineNo">014</span> * limitations under the License.<a name="line.14"></a>
<span class="sourceLineNo">015</span> */<a name="line.15"></a>
<span class="sourceLineNo">016</span><a name="line.16"></a>
<span class="sourceLineNo">017</span>package org.teapot.db.orm.util.keybreak;<a name="line.17"></a>
<span class="sourceLineNo">018</span><a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.teapot.db.orm.IKeyValue;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import org.teapot.db.orm.util.keybreakmany.IWrapper;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import org.teapot.db.orm.util.UModel;<a name="line.21"></a>
<span class="sourceLineNo">022</span><a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.util.Arrays;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a>
<span class="sourceLineNo">026</span><a name="line.26"></a>
<span class="sourceLineNo">027</span>public class DefaultKbInstance {<a name="line.27"></a>
<span class="sourceLineNo">028</span>  /**<a name="line.28"></a>
<span class="sourceLineNo">029</span>   * runBreak.<a name="line.29"></a>
<span class="sourceLineNo">030</span>   * @param transaction Transaction<a name="line.30"></a>
<span class="sourceLineNo">031</span>   * @param proc 回调函数<a name="line.31"></a>
<span class="sourceLineNo">032</span>   * @param arg 参数<a name="line.32"></a>
<span class="sourceLineNo">033</span>   * @param &lt;T&gt; 类型<a name="line.33"></a>
<span class="sourceLineNo">034</span>   * @return 结果<a name="line.34"></a>
<span class="sourceLineNo">035</span>   */<a name="line.35"></a>
<span class="sourceLineNo">036</span>  @SuppressWarnings("unchecked")<a name="line.36"></a>
<span class="sourceLineNo">037</span>  public &lt;T extends IKeyValue&gt; Object runBreak(List&lt;T&gt; transaction, IBreakProcedure proc,<a name="line.37"></a>
<span class="sourceLineNo">038</span>      Object arg) {<a name="line.38"></a>
<span class="sourceLineNo">039</span>    System.out.println(this.getClass().getName() + "----- reset");<a name="line.39"></a>
<span class="sourceLineNo">040</span>    ((IKeyBreak) proc).reset();<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span>    /* MAIN-RTN */<a name="line.42"></a>
<span class="sourceLineNo">043</span>    // PROG-INIT<a name="line.43"></a>
<span class="sourceLineNo">044</span>    System.out.println(this.getClass().getName() + "----- init");<a name="line.44"></a>
<span class="sourceLineNo">045</span>    proc.init(arg);<a name="line.45"></a>
<span class="sourceLineNo">046</span>    // READ-TR<a name="line.46"></a>
<span class="sourceLineNo">047</span>    // Object tr = transaction.get(0);<a name="line.47"></a>
<span class="sourceLineNo">048</span><a name="line.48"></a>
<span class="sourceLineNo">049</span>    System.out.println(this.getClass().getName() + "----- getBreakKeys");<a name="line.49"></a>
<span class="sourceLineNo">050</span>    String[] abreakKeys = ((IKeyBreak) proc).getBreakKeys();<a name="line.50"></a>
<span class="sourceLineNo">051</span>    List&lt;String&gt; breakKeys = UModel.toList(abreakKeys);<a name="line.51"></a>
<span class="sourceLineNo">052</span>    ((IKeyBreak) proc).setKeys(breakKeys);<a name="line.52"></a>
<span class="sourceLineNo">053</span>    breakKeys = Arrays.asList(abreakKeys);<a name="line.53"></a>
<span class="sourceLineNo">054</span>    int total = ((IKeyBreak) proc).getTotal();<a name="line.54"></a>
<span class="sourceLineNo">055</span><a name="line.55"></a>
<span class="sourceLineNo">056</span>    System.out.println(this.getClass().getName() + "----- setTransaction");<a name="line.56"></a>
<span class="sourceLineNo">057</span>    ((IKeyBreak)proc).setTransaction(transaction);<a name="line.57"></a>
<span class="sourceLineNo">058</span><a name="line.58"></a>
<span class="sourceLineNo">059</span>    Object tra = null;<a name="line.59"></a>
<span class="sourceLineNo">060</span>    Object traNext = null;<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span>    int keySize = breakKeys.size() / total;<a name="line.62"></a>
<span class="sourceLineNo">063</span>    boolean isFirstRecord = true;<a name="line.63"></a>
<span class="sourceLineNo">064</span><a name="line.64"></a>
<span class="sourceLineNo">065</span>    List&lt;Comparable&lt;?&gt;&gt; nextKeys = new ArrayList&lt;Comparable&lt;?&gt;&gt;(keySize);<a name="line.65"></a>
<span class="sourceLineNo">066</span>    for (int i = 0; i &lt; keySize; i ++) {<a name="line.66"></a>
<span class="sourceLineNo">067</span>      nextKeys.add(i, "");<a name="line.67"></a>
<span class="sourceLineNo">068</span>    }<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span>    LBL_KEYBREAK_LOOP: for (;;) {<a name="line.70"></a>
<span class="sourceLineNo">071</span>      System.out.println(this.getClass().getName() + "----- readTransaction");<a name="line.71"></a>
<span class="sourceLineNo">072</span>      tra = ((IKeyBreak) proc).readTransaction();<a name="line.72"></a>
<span class="sourceLineNo">073</span>      if (tra == null) {<a name="line.73"></a>
<span class="sourceLineNo">074</span>          System.out.println(this.getClass().getName() + "----- doEnd");<a name="line.74"></a>
<span class="sourceLineNo">075</span>          proc.doEnd();<a name="line.75"></a>
<span class="sourceLineNo">076</span>          break LBL_KEYBREAK_LOOP;<a name="line.76"></a>
<span class="sourceLineNo">077</span>      } else if (isFirstRecord) {<a name="line.77"></a>
<span class="sourceLineNo">078</span>        System.out.println(this.getClass().getName() + "----- doFirstRecord");<a name="line.78"></a>
<span class="sourceLineNo">079</span>        proc.doFirstRecord();<a name="line.79"></a>
<span class="sourceLineNo">080</span>        isFirstRecord = false;<a name="line.80"></a>
<span class="sourceLineNo">081</span>      }<a name="line.81"></a>
<span class="sourceLineNo">082</span><a name="line.82"></a>
<span class="sourceLineNo">083</span>      System.out.println(this.getClass().getName() + "----- readNextTransaction");<a name="line.83"></a>
<span class="sourceLineNo">084</span>      traNext = ( (IKeyBreak) proc).readNextTransaction();<a name="line.84"></a>
<span class="sourceLineNo">085</span>      if (traNext != null) {<a name="line.85"></a>
<span class="sourceLineNo">086</span>        for (int i = 0; i &lt; keySize ; i++) {<a name="line.86"></a>
<span class="sourceLineNo">087</span>          Comparable&lt;?&gt; val = null;<a name="line.87"></a>
<span class="sourceLineNo">088</span>          int idxTraNext = 0;<a name="line.88"></a>
<span class="sourceLineNo">089</span>          if (traNext instanceof IWrapper) {<a name="line.89"></a>
<span class="sourceLineNo">090</span>            idxTraNext = ((IWrapper) traNext).getIndex() + 1;<a name="line.90"></a>
<span class="sourceLineNo">091</span>          }<a name="line.91"></a>
<span class="sourceLineNo">092</span>          String brKey = breakKeys.get(i * total + idxTraNext);<a name="line.92"></a>
<span class="sourceLineNo">093</span>          System.out.println(this.getClass().getName() + "--- set for next ---" + brKey);<a name="line.93"></a>
<span class="sourceLineNo">094</span>          try {<a name="line.94"></a>
<span class="sourceLineNo">095</span>            val = (Comparable&lt;?&gt;)((IKeyValue) traNext).get( brKey );<a name="line.95"></a>
<span class="sourceLineNo">096</span>          } catch ( ClassCastException cce ) {<a name="line.96"></a>
<span class="sourceLineNo">097</span>            cce.printStackTrace();<a name="line.97"></a>
<span class="sourceLineNo">098</span>          }<a name="line.98"></a>
<span class="sourceLineNo">099</span>          if ( val == null ) {<a name="line.99"></a>
<span class="sourceLineNo">100</span>            val = "";<a name="line.100"></a>
<span class="sourceLineNo">101</span>          }<a name="line.101"></a>
<span class="sourceLineNo">102</span>          nextKeys.set(i, val);<a name="line.102"></a>
<span class="sourceLineNo">103</span>        } // for<a name="line.103"></a>
<span class="sourceLineNo">104</span>      } else {<a name="line.104"></a>
<span class="sourceLineNo">105</span>        for (int i = 0; i &lt; keySize ; i++) {<a name="line.105"></a>
<span class="sourceLineNo">106</span>          nextKeys.set( i, "" );<a name="line.106"></a>
<span class="sourceLineNo">107</span>        }<a name="line.107"></a>
<span class="sourceLineNo">108</span>      }<a name="line.108"></a>
<span class="sourceLineNo">109</span><a name="line.109"></a>
<span class="sourceLineNo">110</span>      LBL_KEYBREAK_COMP: for (int i = 0 ; i &lt; keySize ; i ++) {<a name="line.110"></a>
<span class="sourceLineNo">111</span>        int idxtra = 0;<a name="line.111"></a>
<span class="sourceLineNo">112</span>        if (tra instanceof IWrapper) {<a name="line.112"></a>
<span class="sourceLineNo">113</span>          idxtra = ((IWrapper) tra).getIndex() + 1;<a name="line.113"></a>
<span class="sourceLineNo">114</span>        }<a name="line.114"></a>
<span class="sourceLineNo">115</span>        String brKey = breakKeys.get(i * total + idxtra);<a name="line.115"></a>
<span class="sourceLineNo">116</span>        System.out.print(this.getClass().getName() + "----bKey:" + brKey);<a name="line.116"></a>
<span class="sourceLineNo">117</span><a name="line.117"></a>
<span class="sourceLineNo">118</span>        @SuppressWarnings("rawtypes")<a name="line.118"></a>
<span class="sourceLineNo">119</span>        Comparable v1 = null;;<a name="line.119"></a>
<span class="sourceLineNo">120</span>        try {<a name="line.120"></a>
<span class="sourceLineNo">121</span>          v1 = (Comparable&lt;?&gt;)((IKeyValue)tra).get( brKey );<a name="line.121"></a>
<span class="sourceLineNo">122</span>        } catch ( ClassCastException cce ) {<a name="line.122"></a>
<span class="sourceLineNo">123</span>          cce.printStackTrace();<a name="line.123"></a>
<span class="sourceLineNo">124</span>        }<a name="line.124"></a>
<span class="sourceLineNo">125</span><a name="line.125"></a>
<span class="sourceLineNo">126</span>        Comparable&lt;?&gt; v2 = (Comparable&lt;?&gt;) nextKeys.get(i);<a name="line.126"></a>
<span class="sourceLineNo">127</span><a name="line.127"></a>
<span class="sourceLineNo">128</span>        if ( v1 == null ) {<a name="line.128"></a>
<span class="sourceLineNo">129</span>          v1 = "";<a name="line.129"></a>
<span class="sourceLineNo">130</span>        }<a name="line.130"></a>
<span class="sourceLineNo">131</span>        System.out.print("v1:" + v1 + "_vs_v2:" + v2);<a name="line.131"></a>
<span class="sourceLineNo">132</span><a name="line.132"></a>
<span class="sourceLineNo">133</span>        int comp = 0;<a name="line.133"></a>
<span class="sourceLineNo">134</span>        try {<a name="line.134"></a>
<span class="sourceLineNo">135</span>          comp = v1.compareTo( v2 );<a name="line.135"></a>
<span class="sourceLineNo">136</span>        } catch ( ClassCastException cce ) {<a name="line.136"></a>
<span class="sourceLineNo">137</span>          if ( v2 == "" ) {<a name="line.137"></a>
<span class="sourceLineNo">138</span>            comp = 1;<a name="line.138"></a>
<span class="sourceLineNo">139</span>          }<a name="line.139"></a>
<span class="sourceLineNo">140</span>        }<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span>        System.out.println(" comp=" + comp);<a name="line.142"></a>
<span class="sourceLineNo">143</span>        if (comp &lt; 0 ) {<a name="line.143"></a>
<span class="sourceLineNo">144</span>          System.out.println(this.getClass().getName() + "----- doContinue");<a name="line.144"></a>
<span class="sourceLineNo">145</span>          proc.doContinue(); // call doContinue before doBreak<a name="line.145"></a>
<span class="sourceLineNo">146</span>          if ( keySize == 1) {<a name="line.146"></a>
<span class="sourceLineNo">147</span>            System.out.println(this.getClass().getName() + "----- doBreak");<a name="line.147"></a>
<span class="sourceLineNo">148</span>            proc.doBreak(1);<a name="line.148"></a>
<span class="sourceLineNo">149</span>          } else {<a name="line.149"></a>
<span class="sourceLineNo">150</span>            System.out.println(this.getClass().getName() + "----- doBreak i=" + i);<a name="line.150"></a>
<span class="sourceLineNo">151</span>            for (int j = 1; j &lt; keySize - i + 1 ; j ++) {<a name="line.151"></a>
<span class="sourceLineNo">152</span>              proc.doBreak(j);<a name="line.152"></a>
<span class="sourceLineNo">153</span>            }<a name="line.153"></a>
<span class="sourceLineNo">154</span>          }<a name="line.154"></a>
<span class="sourceLineNo">155</span>          break LBL_KEYBREAK_COMP;<a name="line.155"></a>
<span class="sourceLineNo">156</span>        } else if (comp &gt; 0 ) {<a name="line.156"></a>
<span class="sourceLineNo">157</span>          System.out.println(this.getClass().getName() + "----- doContinue");<a name="line.157"></a>
<span class="sourceLineNo">158</span>          proc.doContinue(); // call doContinue before doBreak<a name="line.158"></a>
<span class="sourceLineNo">159</span><a name="line.159"></a>
<span class="sourceLineNo">160</span>          if ( keySize == 1) {<a name="line.160"></a>
<span class="sourceLineNo">161</span>            System.out.println(this.getClass().getName() + "----- doBreak");<a name="line.161"></a>
<span class="sourceLineNo">162</span>            proc.doBreak(1);<a name="line.162"></a>
<span class="sourceLineNo">163</span>          } else {<a name="line.163"></a>
<span class="sourceLineNo">164</span>            System.out.println(this.getClass().getName() + "----- doBreak");<a name="line.164"></a>
<span class="sourceLineNo">165</span>            for (int j = 1; j &lt; keySize - i + 1; j ++) {<a name="line.165"></a>
<span class="sourceLineNo">166</span>              proc.doBreak(j);<a name="line.166"></a>
<span class="sourceLineNo">167</span>            }<a name="line.167"></a>
<span class="sourceLineNo">168</span>          }<a name="line.168"></a>
<span class="sourceLineNo">169</span><a name="line.169"></a>
<span class="sourceLineNo">170</span>          if ( nextKeys.get(i) == null ) {<a name="line.170"></a>
<span class="sourceLineNo">171</span>            System.out.println(this.getClass().getName() + "----- doEnd");<a name="line.171"></a>
<span class="sourceLineNo">172</span>            proc.doEnd();<a name="line.172"></a>
<span class="sourceLineNo">173</span>            break LBL_KEYBREAK_LOOP;<a name="line.173"></a>
<span class="sourceLineNo">174</span>          }<a name="line.174"></a>
<span class="sourceLineNo">175</span>          break LBL_KEYBREAK_COMP; // check the following transaction<a name="line.175"></a>
<span class="sourceLineNo">176</span>        } else {<a name="line.176"></a>
<span class="sourceLineNo">177</span>          /* comp = 0 */<a name="line.177"></a>
<span class="sourceLineNo">178</span>          if (i == keySize - 1) {<a name="line.178"></a>
<span class="sourceLineNo">179</span>            System.out.println(this.getClass().getName() + "----- doContinue");<a name="line.179"></a>
<span class="sourceLineNo">180</span>            proc.doContinue();<a name="line.180"></a>
<span class="sourceLineNo">181</span>            break LBL_KEYBREAK_COMP; // check the following transaction<a name="line.181"></a>
<span class="sourceLineNo">182</span>          }<a name="line.182"></a>
<span class="sourceLineNo">183</span>        }<a name="line.183"></a>
<span class="sourceLineNo">184</span>      } // LBL_KEYBREAK_COMP<a name="line.184"></a>
<span class="sourceLineNo">185</span>      System.out.println();<a name="line.185"></a>
<span class="sourceLineNo">186</span>      } // LBL_KEYBREAK_LOOP<a name="line.186"></a>
<span class="sourceLineNo">187</span><a name="line.187"></a>
<span class="sourceLineNo">188</span>    System.out.println(this.getClass().getName() + "----- fin");<a name="line.188"></a>
<span class="sourceLineNo">189</span>    return proc.fin();<a name="line.189"></a>
<span class="sourceLineNo">190</span>  }<a name="line.190"></a>
<span class="sourceLineNo">191</span>}<a name="line.191"></a>




























































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